CISCE Board - Class 4

Human Physiology & Ecosystems question bank (Science)

Practice 197 free CISCE Board - Class 4 Science - Human Physiology & Ecosystems questions with answers and step-by-step solutions.

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Q1.

Ecology & Adaptation: How do desert or aquatic organisms adapt in 'Human Digestive System and Dental Anatomy'?

(A)
Morphological and physiological modifications conserving water or aiding buoyancy (Human Digestive System and Dental Anatomy)
(B)
Loss of all survival organs
(C)
Sudden extinction
(D)
None of these
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Q2.

Environmental Protection: What is the most effective approach for 'Human Digestive System and Dental Anatomy'?

(A)
Afforestation, waste recycling and water conservation (Human Digestive System and Dental Anatomy)
(B)
Indiscriminate plastic burning
(C)
Contaminating freshwater aquifers
(D)
None of these
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